- Joined
- Nov 1, 2012
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Progress to date. Starting empennage. I have a question for all the wise people on this forum.
Generally 4130 tubing components have interconnecting holes at connections and clusters and one hole somewhere left open to atmosphere. As I understand it, before bead-blasting and external painting the sequence is as follows: 1) Fill component with linseed oil through "atmospheric" hole. 2) Mount on rotisserie and incrementally rotate over a couple of days in an effort to totally coat internal surfaces with linseed oil. 3) Drain out surplus linseed oil. 4) Weld shut the "atmospheric" hole.
There are, however, some components where it seems to me tubes cannot be sealed to leave an "atmospheric" hole. Currently I can think of the following items where this occurs : a) Removable diagonal cabane strut. b) Horizontal stabiliser leading and trailing edge. c) Elevator leading edge
Can anyone give me guidance on method of internal corrosion protection of these components.
